64 



EINAR LÖNNBERG, 



(Schwed. Südpolar-Exp. 



6. IWyctophum (Lampanyctus) braueri ii. sp. 



Fig. I p. 6i. 



I specimen caught in a net drawn from a depth of 2,700 m. to tlie surface, 

 49 56' S. lat., 49' 56' W. long. 27th of June 1902. 



D. 15. A. 18. 



Body rather slender, depth of body about 7 times in total length without cau- 

 dal. Head large, only yU times in total length. Diameter of eye about 4V2 times 

 in length of head. Snout damaged, a little shorter than diameter of eye. Mouth 

 wide extending far beyond posterior margin of eye. Origin of dorsal somewhat 

 behind base of ventrals. Ventrals reaching beyond origin of anal. Posterior end 

 of anal opposite to the adipose fin. 



Fig. I. 



As the specimen is somewhat damaged it is difficult in some cases to state the 

 exact position of the luminous organs. The following statements may, however, be 

 correct: An antorbital, three branchiostegal, and four opercular luminous organs, as 

 usual. A large gap between the first and the four following PO. The two PVO. 

 vertically above each other, below the base of the pectoral. The PLO. above and 

 in front of the same, not far from the lateral line. Six VO. in a series. The most 

 posterior of these is, however, the lowest SAO., as the two others of this group sit 

 in a vertical row above the same. A VLO. sits straight above the base of the 

 ventral but somewhat nearer the lateral line than the ventral. The foremost AO. 

 is pushed somewhat upwards from the otherwise continuous series consisting of nine 

 more AO. along the base of the anal fin. At the posterior end of this series two 

 Pol. form a diagonal series upwards and backwards from the last of the nine AO. 

 Behind a gap seven more AO. form a series along the lower margin of the caudal 

 peduncle and then after a gap three Per. sit in a ventral series. Where the fourth 

 Per. has been situated cannot be decided as it is lost on both sides. 



To judge from Brauer's descriptions this new species may be most nearly re- 

 lated to M. {Lampanyctus) viadcrense (Lowe) and zvaniiingi LCTKEN. M. btaneri 



